That Kelly Osbourne will host the LOVE Hangover Ball to support amfAR at W Union Square on Nov. 28 . . . That Bon Appétit is having a silent auction at its AvroKO-designed party space BA Kitchen to benefit Sandy victims, with hors d’oeuvres by ABC Kitchen’s Dan Kluger on Dec. 4 . . . That former More editor Judy Goss is launching an LA chapter of her women’s networking group, Over 40 Females . . . That Armin van Buuren will perform at Joonbug.com’s New Year’s Eve party at Pier 36.